This add-on's version is for Jira Server 6.0 - 6.3.14
- Log into your JIRA instance as an admin
- Click the admin dropdown and choose Atlassian Marketplace
- Click Find new add-ons from the left-hand side of the page
- Locate MailTask via search
- Click Try free to begin a new trial or Buy now to purchase a license for Mail Task
- Enter your information and click Generate license when redirected to MyAtlassian
- Click Apply license